Burj Dubai-The world's tallest building since 2010

Burj Khalifa  formerly known as Burj Dubai, is a tallest, sky touching building in Dubai, United Arab Emirates, and the tallest man-made structure ever built. The building is part of the 2 km2 (490-acre) flagship development called Downtown Burj Khalifa.
More than just the world's tallest building, Burj Khalifa is an unprecedented example of international cooperation, symbolic beacon of progress, and an emblem of the new, prosperous Middle East.

Location
Downtown Burj, Shekh Zayed Road, Dubai, United Arab Emirates

Height

828 m (2717 ft)

Floor Area 
334000 m² (3,595,100 sq ft)

Cost
$1.5 billion

Starting Date of construction

21,September 2004

Opened date

4,January 2010

Architect    
Skidmore, Owings and Merrill

Structural engineer  
Bill Baker at SOM

Contractor Companies     

Samsung C&T, Besix and Arabtec

Opening Ceremony

Opening ceremony was on 4,january 2010. The ceremony contains a display of 10,000 fireworks, light beams projected on and around the tower, and further sound, light and water effects. Using the 868 powerful stroboscope lights that are integrated into the facade and spire of the tower, different lighting sequences were choreographed, together with more than 50 different combinations of the other effects.

Construction

The tower was constructed by a South Korean company, Samsung Engineering & Construction, which also did work on the Petronas Twin Towers and Taipei 101.

The primary structural system of Burj Khalifa is reinforced concrete. Over 45,000 m3 of concrete, weighing more than 110,000 tonnes were used to construct the concrete and steel foundation, which features 192 piles, with each pile is 1.5 metre diameter x 43 metre long buried more than 50 m (164 ft) deep. Burj Khalifa's construction used 330,000 m3 of concrete and 55,000 tonnes of steel rebar, and construction took 22 million man-hours.

Burj Khalifa has Pressurized, air-conditioned refuge floors are located approximately every 35 floors where people can shelter on their long walk down to safety in case of an emergency or fire.

The unique design and engineering challenges of building Burj Khalifa have been featured in a number of television, including the Big, Bigger, Biggest series on the National Geographic and Five channels, and the Mega Builders series on the Discovery Channel.

The Park 
From Burj Khalifa's unique triple-lobed shape, The Park's 11 hectares of greenery and water features serve as both entry to Burj Khalifa  and outdoor living space. These exquisite grounds include a promenade along the Dubai lake, outdoor spaces, outdoor dining, prow lookout, leisure forest grove, playing area, water features and much more.
The landscape design includes six major water features: the main entry fountain, hotel entry fountain, residential entry fountain, the grand water terrace, children's fountain pool and the sculptural fountain.

The design includes three distinct areas to serve each of tower's three uses: hotel, residential and office space. 

Floors             Use
160   and above         Mechanical
156–159                     Communication and broadcast
155                             Mechanical
139–154                     Corporate suites
136–138                     Mechanical
125–135                     Corporate suites
124                             At the Top observatory
123                             Sky lobby
122                             At.mosphere restaurant
111–121                     Corporate suites
109–110                     Mechanical
77–108                       Residential
76                               Sky lobby
73–75                        Mechanical
44–72                         Residential
43                               Sky lobby
40–42                        Mechanical
38–39                        Armani Hotel suites
19–37                        Armani Residences
17–18                        Mechanical
9–16                          Armani Residences
1–8                            Armani Hotel
Ground                     Armani Hotel
Concourse                Armani Hotel
B1–B2                      Parking, mechanical